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Floyd Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Diego-County, California
Our Model Tree links this Floyd Davis across the 1910, 1920, 1930 and 1940 US Censuses in San-Diego-County, California (XGBoost, ~Confirmed), with identified parents George & George — first a son (b.~1901), then head of a 3-person household.
Age 39
b. ~1901
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Diego-County, California |
| Surname | Davis |
| Given Name | Floyd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | National Township |
| 1935 Residence (County) | San Diego |
| Additional Details | |
| Occupation | Rancher |
| Industry | Lemon Orchard |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | No 10 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Rancher |
| Township / Ward | National Township |
| Est. Birth Year | ~1901 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Floyd | Age | Birth yr |
|---|---|---|---|---|
| Floyd Davis | Son | — | 39 | ~1901 |
| George Davis | Head | — | 82 | ~1858 |
| Dora Davis | Spouse | — | 76 | ~1864 |
Census Appearances
1910
San Diego, …
Son, age 9
San Diego, California · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Floyd Hill |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
San Diego, …
Son, age 18
San Diego, California · implied b. ~1902
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Davis |
| Given Name | Floyd H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Diego, …
Son, age 29
San Diego, California · implied b. ~1901 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Floyd H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Diego-County, California
Son, age 39
San-Diego-County, California · implied b. ~1901 — 3 household members
| Surname | Davis |
| Given Name | Floyd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | National Township |
| 1935 Residence (County) | San Diego |
| Occupation | Rancher |
| Industry | Lemon Orchard |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | No 10 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Floyd Davis across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Davis (~0.92 confidence) and father George Davis (~0.92 confidence) and father George Davis (~0.92 confidence) and mother Dora Davis (~0.92 confidence) and mother Dora Davis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Davis
b. ~1858
Source father
● Household
· direct · ~0.92
Father
George Davis
b. ~1858
Source father
● Household
· direct · ~0.92
Father
George Davis
b. ~1859
Source father
● Household
· direct · ~0.92
Mother
Dora Davis
b. ~1866
Source mother
● Household
· direct · ~0.92
Mother
Dora Davis
b. ~1864
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Floyd Davis
Son · 1940 · age 39 · b. ~1901 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — San-Diego-County, California
Open full size
1940 US Federal Census — San-Diego-County, California
Page Contents
36 people indexed on this census page (nara:1940:m-t0627-00297-00413)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ralph Mullin | 44 | Head | Owner | Iowa |
| 2 | Clara Mullin | 41 | Wife | Housewife | Alabama |
| 3 | Alden Mullin | 15 | Son | Student | California |
| 4 | Duncan Mcgregor | 75 | Head | Owner | Canada Eng |
| 5 | Sarah Mcgregor | 75 | Wife | Housewife | Canada Eng |
| 6 | George Davis | 82 | Head | — | Iowa |
| 7 | Dora Ann Davis | 76 | Wife | Housewife | Iowa |
| 8 | Floyd Davis THIS PERSON | 39 | Son | Rancher | California |
| 9 | Louise Green | 78 | Head | Housewife | Germany |
| 10 | Frederick Hubbard | 44 | Head | Partner | Massachusetts |
| 11 | Emmaline Hubbard | 40 | Wife | Housewife | Missouri |
| 12 | Albert Francis | 65 | Roomer | Laborer | England |
| 13 | David Livingston | 45 | Head | Partner | Scotland |
| 14 | Eleanor Livingston | 43 | Wife | Housewife | Kansas |
| 15 | Yot Miller | 52 | Head | Pruning Trees | France |
| 16 | Arthur Graves | 61 | Head | Machinist | Indiana |
| 17 | Lillie Graves | 52 | Wife | Housewife | Indiana |
| 18 | Floyd Price | 46 | Head | Mechanic | Nebraska |
| 19 | Jessie Price | 32 | Wife | Housewife | Colorado |
| 20 | Ray Allen | 52 | Head | Laundry Man | New York |
| 21 | Lottie Allen | 52 | Wife | Housewife | Indiana |
| 22 | Arthur Wilson | 41 | Head | Boilermaker | Texas |
| 23 | Louisa Wilson | 41 | Wife | Housewife | Massachusetts |
| 24 | Loque Wilson | 5 | Daughter | — | California |
| 25 | Jeanne Wilson | 2 | Daughter | — | California |
| 26 | Melvin Morris | 44 | Head | Ranch Hand | Maine |
| 27 | Katie Morris | 38 | Wife | Housewife | Maine |
| 28 | William H. Todd | 39 | Head | Laborer | Ohio |
| 29 | Gladys Todd | 35 | Wife | Housewife | California |
| 30 | Daughter Villa | None | F | — | — |
| 31 | Jeannette Villa | 13 | Daughter | — | California |
| 32 | William Villa | 9 | Son | — | California |
| 33 | Darlene Villa | 8 | Daughter | — | California |
| 34 | Marlene Villa | 5 | Daughter | — | California |
| 35 | Sylvia Villa | 3 | Daughter | — | California |
| 36 | May B. Burris | 46 | Head | Reporter | Illinois |
Pedigree Summary
Floyd
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)